Ressource file not found in Linux but works in Windows

Nayar

Hi, I am using a QRessource to fetch an SQL to run. However it is getting the file in windows only.

@QFile createTableSQLFile(":/sql/dbinstaller.sql");@

Here's my meradatabase.h
@class MeraDatabase
{
public:
static QSqlQuery exec(QString sql);
static QSqlDatabase getDB();

protected:
static QSqlDatabase init();
private:
static const QSqlDatabase db;
static bool install(QSqlDatabase temp);
};@

meradatabase.cpp

@#include "meradatabase.h"
#include <QtSql>
#include "iostream"
#include "string"
#include <fstream>
#include <QtDebug>
#include <QSqlDatabase>

using namespace std;

const QSqlDatabase MeraDatabase::db = MeraDatabase::init();

bool MeraDatabase::install(QSqlDatabase temp)
{
temp.open();
qDebug() << "Installing..";

//installlock.open(QIODevice::WriteOnly | QIODevice::Text);
//QTextStream out(&installlock);
//out << "locked";
QString sql;


QFile createTableSQLFile&#40;":/sql/dbinstaller.sql"&#41;;
if(createTableSQLFile.open(QIODevice::ReadOnly&#41;&#41;{ // This is failing in Linux <<<<<<<<<<<<<<<<<<<
    
    //temp.exec&#40;"CREATE DATABASE fuzzycompostdb"&#41;;
    sql = createTableSQLFile.readAll(&#41;;
    temp.exec(sql&#41;;
    qDebug(&#41; << ".. Creating tables..";
    qDebug(&#41; << temp.lastError();

    QFile addDefaultSubstrates(":/sql/defaultsubstrates.sql");
    if(addDefaultSubstrates.open(QIODevice::ReadOnly)){
        sql = addDefaultSubstrates.readAll();
        temp.exec&#40;sql&#41;;
        qDebug(&#41; << ".. Adding Default Values.." <<sql;
        qDebug(&#41; << temp.lastError();
    }
}

return true;

}

QSqlDatabase MeraDatabase::init()
{
qDebug() << "Getting DB connection";
QString dbName = "fuzzyDB";
QString dbType = "QSQLITE";
//QSqlDatabase db;
QSqlDatabase temp;
if(dbType == "QSQLITE"){
temp = QSqlDatabase::addDatabase("QSQLITE");
qDebug() << "sqlite temp..";
//temp.addDatabase("QSQLITE");
temp.setDatabaseName(dbName + "db3");
QFile installlock("installlock");
if(!installlock.exists()){
install(temp);
}
}

QSqlQuery result = temp.exec&#40;"select * from substrate_type"&#41;;
qDebug(&#41; << temp.lastError(&#41;;
qDebug() << "name";
while(result.next()){
    qDebug() << "name" <<result.value("name");
}
return temp;

}

QSqlQuery MeraDatabase::exec(QString sql)
{
return db.exec(sql);
}@

If i use the resource outside this class, it works fine on both Linux and windows. Dunno why my Linux Qt can't find the file.

Best Regards
Nayar

sierdzio

Make sure all the paths are correct. Windows uses different build directories by default, it can cause a lot of hard-to-debug bugs.

jmimi

Please give your .pro file.
The only reason is that resources does not be packed in your build.

Nayar

Managed to get it to work. I put @ Q_INIT_RESOURCE(fcl);@ before using the files and it worked.

Dunno why on linux and in static functions, Q_QINIT is required but works "out of the box" on Windows

Thanks guys :)